EP0610707B1 - Height adjustable apparatus - Google Patents

Height adjustable apparatus Download PDF

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Publication number
EP0610707B1
EP0610707B1 EP94100981A EP94100981A EP0610707B1 EP 0610707 B1 EP0610707 B1 EP 0610707B1 EP 94100981 A EP94100981 A EP 94100981A EP 94100981 A EP94100981 A EP 94100981A EP 0610707 B1 EP0610707 B1 EP 0610707B1
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EP
European Patent Office
Prior art keywords
locking sleeve
axis
standpipe
rotation
face
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94100981A
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German (de)
French (fr)
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EP0610707A1 (en
Inventor
Fritz Pesendorfer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UMDASCH SHOP - CONCEPT GESELLSCHAFT M.B.H.
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Umdasch Shop - Concept GmbH
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Publication of EP0610707A1 publication Critical patent/EP0610707A1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G25/00—Household implements used in connection with wearing apparel; Dress, hat or umbrella holders
    • A47G25/02—Dress holders; Dress suspending devices; Clothes-hanger assemblies; Clothing lifters
    • A47G25/06—Clothes hooks; Clothes racks; Garment-supporting stands with swingable or extending arms
    • A47G25/0664—Standing garment supporting racks; Garment supporting stands with swingable or extending arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems
    • F16B7/105—Telescoping systems locking in discrete positions, e.g. in extreme extended position

Definitions

  • the invention relates to a height-adjustable device according to the preamble of claim 1.
  • Height adjustable devices of this type are mainly in the shop area or in the sales area of Garments used. However, there are others Areas of application, such as the living area, conceivable.
  • EP-0 181 584 is a height adjustable Polygon column dress display stand known. With this is a telescopic on a standpipe arrangement Movable extension tube with a height adjustment device provided by which the relative height of the Extension column is adjustable on a standpipe.
  • the Height adjustment device consists of an over the Extension tube slidable and on the upper end of the Standpipe supported locking device and one Number along one of the wall sections of the extension column Recesses aligned with one another.
  • the Locking device with one on the extension tube longitudinally displaceable sleeve is through on the extension tube their passage opening secured against rotation, on the Inside a recess to be inserted into the recesses certain pin member is arranged.
  • This tenon link Opposite is a spring element that the sleeve on the Pin member side presses against the extension tube and that Pin member in the recess holds.
  • a height adjustment device of this type is a Reliably indexable height adjustment of the extension tube enabled and practically not operable under load is, the construction of the sleeve requires several movable Parts and leaves no one-handed operation when pulling out the Height adjustment device too.
  • the pipe section consists of a sloping pipe section, the axis of symmetry of which is coaxial the axis of symmetry of a standpipe.
  • the inner elastic coating has a state constant thickness.
  • the clamping element from a straight pipe section and one inner elastic coating that in unloaded Condition has a different thickness, so that their Axis of symmetry is coaxial with that of the inner tube.
  • the sleeve or the outer pipe is in contact with the upper one
  • the end face of the clamping element in turn becomes elastic Coating deformed and thereby clamped.
  • the Inner coating to be deformable to an axial To enable displacement and a lock.
  • a generic height adjustable device is from the WO-A-90/05470 known.
  • the one disclosed herein height-adjustable device has a locking element, in which a telescopic tube with a square cross-section is relative is slidably mounted therein to a standpipe.
  • the Standpipe has an inclined surface at its upper end, on which the locking element rests in the locked state.
  • the known locking element consists of a Ring wire encircling the telescopic tube with an inward orientation extending pin section which in the locked state in one of the elongated holes engages in the telescopic tube.
  • the ring wire pivots until the pin section comes to lie outside the elongated hole.
  • the Pin section engages with the closest elongated hole. This will then raise the telescopic tube to the desired height locked.
  • the technical problem underlying the invention exists therein a height-adjustable device of the above Develop genus in such a way that when training a extending along the extension tube locking sleeve with which has a more pleasing and stable appearance can be achieved with the pull-out curtain one-hand operation is possible.
  • the height-adjustable device according to the invention becomes a completely new design concept Provided by the special shape the top and bottom faces and also the top Locking and releasing the front surface of the standpipe Locking sleeve is made possible.
  • the present invention has the advantages of being one simple assembly allowed, none when loosening the fixation mechanical actuation is necessary, as well as a simple one Operation and when pulling out the extension tube one One-hand operation enables.
  • the locking sleeve in the locked state has the same cross-sectional shape as the standpipe and is aligned coaxially with the standpipe pleasing appearance achieved.
  • the approach is advantageously on the inside of the Locking sleeve designed so that when lifting the Extension tube the locking sleeve independently through the Weight of the locking sleeve rotates about an axis of rotation while sliding out of the recess in the extension tube.
  • the approach is wedge-shaped or is dome-shaped and extends downwards tapers to the inner edge of the standpipe.
  • This will advantageously an ideal ramp surface for the Extension tube created, which when pulling out Extension tube the approach automatically from the recess can slide out by rotating the locking sleeve.
  • the upper surface line which is characterized by the upper end face on the extension tube gives one lowest point that is equal to or around a certain point Amount is lower than the top point of the bottom Surface line extending through the lower end face on the Extension tube results.
  • the locking sleeve can be made of any suitable material be made, however, it is due to the low Manufacturing costs are particularly advantageous if these are made Plastic or cast is made.
  • the only figure shows a stationary standpipe and a Extension tube with locking sleeve, in longitudinal section.
  • an extension tube 4 vertically displaceable inserted.
  • the extension tube 4 is on at least one Side with one or more recesses 7 aligned in Provide vertical direction.
  • the Locking sleeve 2 pushed so that the entire Inner wall in the locked state parallel to the The outer wall of the extension tube 4 runs.
  • the sliding extension tube 4 lies with the upper Side of a recess 7 on a horizontally formed Surface 3a of the molded wedge or crest 3 of the Locking sleeve 2 on non-positively.
  • the wedge-shaped approach 3 of the locking sleeve 2 is at the lower end of the inside the locking sleeve 2 is formed in relation to the axis of rotation 1, can, however, not shown here, also on the Inside of the locking sleeve 2 at the axis of rotation 1 above the Axis of rotation 1 be formed.
  • the wedge-shaped or dome-shaped Approach 3 tapers to the lower face of the Locking sleeve 2 to the inner edge of the relatively stationary Standpipe 5.
  • the bottom face of the Locking sleeve 2 and by the taper of the wedge or dome-shaped approach 3 an angle ⁇ , which is larger than 90 °.
  • the locking sleeve 2 is through on the upper side a diagonal cut that is limited to the longitudinal axis the extension tube is guided so that the top point 6 in Longitudinal section to the lowest point 1 of the opposite side is that a tilting of the Locking sleeve 2 is possible.
  • the height-adjustable extension tube 4 is after pull up.
  • the extension tube 4 comes the lower part of the recess 7 slidably in contact with the wedge-shaped or dome-shaped extension 3 of the locking sleeve 2.
  • the wedge or dome shape of the approach 3 Locking sleeve 2 rotated outward about point 1.
  • the weight of the locking sleeve 2 that this does not move upwards with the extension tube 4.
  • the extension tube 4 slides the wedge or dome-shaped extension 3 of the locking sleeve 2 from the Recess 7 of the extension tube 4.
  • extension tube 4 pulled further up, comes the wedge or dome-shaped approach 3 of the locking sleeve 2 with the next following recess 7 of the extension tube 4 in Intervention.
  • the wedge-shaped or dome-shaped attachment 3 snaps in the closest recess of the height adjustable Extension tube 4 a.
  • the extension tube 4 is then in height fixed, because over the horizontal surface of the wedge or dome-shaped approach 3a and the upper side of the Recess 7 of the extension tube 4 and the lower side of the Locking sleeve 2 and the upper side of the stationary Standpipe 5 non-positive connection.
  • the gravity of the locking sleeve 2 and the shape of the enable the upper and lower end faces to each other, that the connection locking sleeve 2 and Loosen the height-adjustable extension tube 4 when pulling up can.
  • One-handed operation when pulling up is through this Features of the locking sleeve 2 guaranteed.
  • Through the wedge or dome-shaped approach 3 becomes one-handed operation facilitated.
  • the pull-out tube 4 is slightly relieved by lifting and then the locking sleeve 2 rotated upward about point 1 be so that the wedge-shaped or dome-shaped approach 3 the recess 7 of the height-adjustable extension tube 4 can slide.
  • the locking sleeve 2 must be simple be released. The wedge-shaped or dome-shaped approach 3 then snaps into the nearest recess 7 of the height-adjustable extension tube 4.
  • the upper and lower end faces of the locking sleeve 2 as well the upper end face of the fixed standpipe 5 can be carried out in various ways.
  • the top and bottom Limitations of the locking sleeve 2, however, must be one Allow rotation around axis 1. This can e.g. by Bevel cuts with respect to the longitudinal axis of the extension tube 4, such as. also through U-shaped incisions on two opposite sides.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A very simple and easy-to-use height adjustable apparatus for the shop sector, but also for the domestic sector, is achieved by a locking sleeve (2) which totally or partially surrounds an extending tube (4) which is displaceable relative to a fixed standing tube (5). In this arrangement, the upper and lower faces of the locking sleeve (2) are shaped in such a way that rotation about an axis (1) perpendicular to the longitudinal axis of the extending tube (4) is possible to such a degree that a wedge- or dome-shaped lug (3) on the inner side of the locking sleeve (2) can slide out of an opening (7) in the extending tube (4) and the locking sleeve (2) can then be displaced along the extending tube (4), the wedge- or dome-shaped lug (3) being integrally moulded on the lower inner side opposite the axis of rotation (1) or on the side of the axis of rotation (1) above the axis of rotation (1). When the extending tube (4) is lifted, the locking sleeve (2) rotates owing to its weight independently about the axis of rotation (1), and the wedge- or dome-shaped lug (3) slides out of the opening (7) in the extending tube (4). <IMAGE>

Description

Die Erfindung betrifft eine höheneinstellbare Einrichtung gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a height-adjustable device according to the preamble of claim 1.

Höheneinstellbare Einrichtungen dieser Art sind hauptsächlich im Ladenbereich bzw. im Verkaufsbereich von Kleidungsstücken eingesetzt. Jedoch sind auch andere Einsatzgebiete, wie z.B. der Wohnbereich, denkbar.Height adjustable devices of this type are mainly in the shop area or in the sales area of Garments used. However, there are others Areas of application, such as the living area, conceivable.

Aus der EP-0 181 584 ist ein höhenverstellbarer Polygonsäulen-Kleiderpräsentierständer bekannt. Bei diesem ist an einer Standrohranordnung ein teleskopisch bewegliches Auszugsrohr mit einer Höhenverstelleinrichtung vorgesehen, durch welche die relative Höhe der Auszugssäule auf einem Standrohr einstellbar ist. Die Höhenverstelleinrichtung besteht aus einer über das Auszugsrohr verschiebbaren und auf dem oberen Ende des Standrohrs abgestützten Arretiervorrichtung und einer Anzahl längs einem der Wandabschnitte der Auszugssäule aufeinander fluchtend angeordneten Ausnehmungen. Die Arretiervorrichtung mit einer auf dem Auszugsrohr längsverschiebbaren Hülse ist auf dem Auszugsrohr durch ihre Durchlaßöffnung gegen Verdrehung gesichert, auf deren Innenseite ein in die Ausnehmungen einzugreifendes bestimmtes Zapfenglied angeordnet ist. Diesem Zapfenglied gegenüber liegt ein Federelement, das die Hülse auf der Zapfengliedseite an dem Auszugsrohr anpreßt und das Zapfenglied in der Ausnehmung festhält. From EP-0 181 584 is a height adjustable Polygon column dress display stand known. With this is a telescopic on a standpipe arrangement Movable extension tube with a height adjustment device provided by which the relative height of the Extension column is adjustable on a standpipe. The Height adjustment device consists of an over the Extension tube slidable and on the upper end of the Standpipe supported locking device and one Number along one of the wall sections of the extension column Recesses aligned with one another. The Locking device with one on the extension tube longitudinally displaceable sleeve is through on the extension tube their passage opening secured against rotation, on the Inside a recess to be inserted into the recesses certain pin member is arranged. This tenon link Opposite is a spring element that the sleeve on the Pin member side presses against the extension tube and that Pin member in the recess holds.

Obwohl eine Höhenverstelleinrichtung dieser Art eine zuverlässig indexierbare Höhenverstellung des Auszugsrohrs ermöglicht und unter Belastung praktisch nicht betätigbar ist, erfordert der Aufbau der Hülse mehrere bewegliche Teile und läßt keine Einhandbedienung beim Ausziehen der Höhenverstelleinrichtung zu.Although a height adjustment device of this type is a Reliably indexable height adjustment of the extension tube enabled and practically not operable under load is, the construction of the sleeve requires several movable Parts and leaves no one-handed operation when pulling out the Height adjustment device too.

Aus dem DE-GM 87 16 304 ist eine weitere Arretiervorrichtung mit einem Klemmelement bekannt, das aus einem Rohrstück besteht, welches mit einer inneren elastischen Beschichtung ausgestattet ist. Bei einem ersten Ausführungsbeispiel besteht das Rohrstück aus einem schrägen Rohrabschnitt, dessen Symmetrieachse koaxial zu der Symmetrieachse eines Standrohrs liegt. In unbelastetem Zustand besitzt die innere elastische Beschichtung eine konstante Dicke. Zur Klemmung wird eine Muffe bzw. ein Außenrohr in Anlage mit der oberen Stirnfläche des Klemmelements gebracht wodurch dieses verkantet und durch Verformung der inneren, elastischen Beschichtung verklemmt. Bei einem zweiten Ausführungsbeispiel besteht das Klemmelement aus einem geraden Rohrabschnitt und einer inneren elastischen Beschichtung, die in unbelastetem Zustand eine unterschiedliche Dicke hat, so daß deren Symmetrieachse koaxial mit der des inneren Rohres liegt. Bei Anlage der Muffe bzw. des Außenrohrs an die obere Stirnfläche des Klemmelements wird wiederum die elastische Beschichtung verformt und dadurch eine Klemmung erreicht. Bei dieser bekannten Arretiervorrichtung muß die Innenbeschichtung verformbar sein, um eine axiale Verschiebung und eine Arretierung zu ermöglichen. Another is from DE-GM 87 16 304 Locking device known with a clamping element, the consists of a piece of pipe, which with an inner elastic coating. At a In the first embodiment, the pipe section consists of a sloping pipe section, the axis of symmetry of which is coaxial the axis of symmetry of a standpipe. In unpolluted The inner elastic coating has a state constant thickness. For clamping a sleeve or a Outer tube in contact with the upper face of the Brought clamping element whereby this canted and through Deformation of the inner, elastic coating jammed. In a second embodiment the clamping element from a straight pipe section and one inner elastic coating that in unloaded Condition has a different thickness, so that their Axis of symmetry is coaxial with that of the inner tube. When the sleeve or the outer pipe is in contact with the upper one The end face of the clamping element in turn becomes elastic Coating deformed and thereby clamped. In this known locking device, the Inner coating to be deformable to an axial To enable displacement and a lock.

Eine gattungsgemäße höheneinstellbare Einrichtung ist aus der WO-A-90/05470 bekannt. Die hierin offenbarte höheneinstellbare Einrichtung weist ein Arretierelement auf, bei dem ein im Querschnitt quadratisches Teleskoprohr relativ zu einem Standrohr verschieblich darin gelagert ist. Das Standrohr weist an seinem oberen Ende eine Schrägfläche auf, auf der in arretiertem Zustand das Arretierelement aufliegt. Das bekannte Arretierelement besteht aus einem das Teleskoprohr umgreifenden Ringdraht mit einem sich nach innen erstreckenden Stiftabschnitt, der im arrtierten Zustand in eines der Langlöcher im Teleskoprohr eingreift. Durch einfaches Anheben des Teleskoprohrs wird der Ringdraht nach oben verschwenkt, wobei er mit seiner einen Seite auf dem oberen Ende des Standrohrs in Anlage bleibt. Beim Hochziehen des Teleskoprohrs verschwenkt sich der Ringdraht soweit, bis der Stiftabschnitt außerhalb des Langlochs zu liegen kommt. Durch leichtes Ablassen des Teleskoprohrs kommt der Stiftabschnitt mit dem nächstliegenden Langloch in Eingriff. Dadurch wird dann das Teleskoprohr in der gewünschten Höhe arretiert.A generic height adjustable device is from the WO-A-90/05470 known. The one disclosed herein height-adjustable device has a locking element, in which a telescopic tube with a square cross-section is relative is slidably mounted therein to a standpipe. The Standpipe has an inclined surface at its upper end, on which the locking element rests in the locked state. The known locking element consists of a Ring wire encircling the telescopic tube with an inward orientation extending pin section which in the locked state in one of the elongated holes engages in the telescopic tube. By simply lifting the telescopic tube turns the ring wire after pivoted above, with one side on the remains in the upper end of the standpipe. When pulling up of the telescopic tube, the ring wire pivots until the pin section comes to lie outside the elongated hole. By gently lowering the telescopic tube, the Pin section engages with the closest elongated hole. This will then raise the telescopic tube to the desired height locked.

Für einen Betrachter vermittelt der bei der bekannten hoheneinstellbaren Einrichtung verwendete Ringdraht zum einen ein "billiges" Erscheinungsbild, zum anderen wird ein Betrachter aufgrund der dünnen Ringdrahtlösung möglicherweise die Halterung als instabil ansehen, was sie für die gedachten Verwendungszwecke nicht geeignet erscheinen läßt.For a viewer, the mediates with the known high adjustable device used ring wire on the one hand a "cheap" appearance, the other is a Perhaps due to the thin ring wire solution view the bracket as unstable, what it was intended for Uses does not appear suitable.

Das der Erfindung zugrundeliegende technische Problem besteht darin, eine höheneinstellbare Einrichtung der genannten Gattung derart weiterzubilden, daß bei Ausbildung einer sich längs des Auszugsrohrs erstreckenden Arretierhülse, mit der ein gefälligeres und stabileres Erscheinungsbild erzielbar ist, beim Ausziehvorhang Einhandbedienung ermöglicht ist. The technical problem underlying the invention exists therein a height-adjustable device of the above Develop genus in such a way that when training a extending along the extension tube locking sleeve with which has a more pleasing and stable appearance can be achieved with the pull-out curtain one-hand operation is possible.

Dieses technische Problem wird durch eine höheneinstellbare Einrichtung mit den Merkmalen des Anspruchs 1 gelöst.This technical problem is caused by an adjustable height Device with the features of claim 1 solved.

Mit der erfindungsgemäßen höheneinstellbaren Einrichtung wird ein vollkommen neuartiges Konstruktionskonzept zur Verfügung gestellt, bei der durch die spezielle Formgebung der oberen und unteren Stirnflächen und auch der oberen Stirnfläche des Standrohrs ein Arretieren und Lösen der Arretierhülse ermöglicht wird.With the height-adjustable device according to the invention becomes a completely new design concept Provided by the special shape the top and bottom faces and also the top Locking and releasing the front surface of the standpipe Locking sleeve is made possible.

Die vorliegende Erfindung hat die Vorteile, daß sie eine einfache Montage erlaubt, beim Lösen der Fixierung keine mechanische Betätigung nötig ist, sowie eine einfache Bedienung und beim Herausziehen des Auszugsrohrs eine Einhandbedienung ermöglicht. Außerdem ist die Verwendung von kreis-, oval- oder polygonförmigen Querschnittsprofilen des Stand- und Auszugsrohrs wie auch der Arretierhülse möglich.The present invention has the advantages of being one simple assembly allowed, none when loosening the fixation mechanical actuation is necessary, as well as a simple one Operation and when pulling out the extension tube one One-hand operation enables. In addition, the use of circular, oval or polygonal Cross-sectional profiles of the stand and extension tube as well the locking sleeve possible.

Dadurch, daß im arretierten Zustand die Arretierhülse die gleiche Querschnittsform wie das Standrohr aufweist und koaxial mit dem Standrohr ausgerichtet ist, wird ein gefälliges Äußeres erzielt.The fact that the locking sleeve in the locked state has the same cross-sectional shape as the standpipe and is aligned coaxially with the standpipe pleasing appearance achieved.

Vorteilhafterweise ist der Ansatz an der Innenseite der Arretierhülse so ausgebildet, daß sich beim Anheben des Auszugsrohrs die Arretierhülse selbständig durch die Gewichtskraft der Arretierhülse um eine Drehachse dreht und dabei aus der Ausnehmung im Auszugsrohr herausgleitet.The approach is advantageously on the inside of the Locking sleeve designed so that when lifting the Extension tube the locking sleeve independently through the Weight of the locking sleeve rotates about an axis of rotation while sliding out of the recess in the extension tube.

Insbesondere ist es vorteilhaft, daß der Ansatz keil- oder kuppenförmig ausgebildet ist und sich nach unten hin bis zum Innenrand des Standrohrs verjüngt. Hierdurch wird vorteilhafterweise eine ideale Auflauffläche für das Auszugsrohr geschaffen, wodurch beim Ausziehen des Auszugsrohrs der Ansatz automatisch aus der Ausnehmung unter Drehung der Arretierhülse herausgleiten kann.In particular, it is advantageous that the approach is wedge-shaped or is dome-shaped and extends downwards tapers to the inner edge of the standpipe. This will advantageously an ideal ramp surface for the Extension tube created, which when pulling out Extension tube the approach automatically from the recess can slide out by rotating the locking sleeve.

Damit beim Ausziehen des Auszugsrohrs der Ansatz problemlos aus der Ausnehmung herausgleitet, ist es insbesondere vorteilhaft, daß der zwischen der unteren Stirnfläche der Arretierhülse und der Verjüngung des keil- oder kuppenförmig ausgebildeten Ansatzes eingeschlossene Winkel größer als 90° ist.So that the approach when pulling out the extension tube it easily slides out of the recess particularly advantageous that the between the lower Face of the locking sleeve and the taper of the wedge or dome-shaped approach included Angle is greater than 90 °.

Damit im arretierten Zustand die Arretierhülse einwandfrei auf der oberen Stirnfläche des Standrohrs anliegt, ist es vorteilhaft, daß die obere Stirnfläche des Standrohrs und die untere Stirnfläche der Arretierhülse im wesentlichen die gleiche Form aufweisen.So that the locking sleeve works properly when locked it rests on the upper face of the standpipe advantageous that the upper end face of the standpipe and the lower end face of the locking sleeve essentially have the same shape.

Eine besonders einfache Ausbildung der unteren und oberen Stirnfläche der Arretierhülse wird durch Schrägschnitte erreicht.A particularly simple design of the lower and upper Face of the locking sleeve is made by bevel cuts reached.

Damit die Arretierhülse einwandfrei verschwenkbar ist, so daß der Ansatz aus der Ausnehmung herausgleiten kann, ist es vorteilhaft, daß die obere Mantellinie, die sich durch die obere Stirnfläche auf dem Auszugsrohr ergibt, einen tiefsten Punkt aufweist, der gleich oder um einen gewissen Betrag tiefer liegt als der oberste Punkt der unteren Mantellinie, die sich durch die untere Stirnfläche auf dem Auszugsrohr ergibt.So that the locking sleeve can be pivoted properly, so that the approach can slide out of the recess is it is advantageous that the upper surface line, which is characterized by the upper end face on the extension tube gives one lowest point that is equal to or around a certain point Amount is lower than the top point of the bottom Surface line extending through the lower end face on the Extension tube results.

Die Arretierhülse kann aus jedem geeigneten Material hergestellt werden, jedoch ist es aufgrund der geringen Herstellungskosten besonders vorteilhaft, wenn diese aus Kunststoff oder Guß besteht. The locking sleeve can be made of any suitable material be made, however, it is due to the low Manufacturing costs are particularly advantageous if these are made Plastic or cast is made.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und im folgenden näher beschrieben.An embodiment of the invention is in the drawing shown and described in more detail below.

Die einzige Figur zeigt ein ortsfestes Standrohr und ein Auszugsrohr mit Arretierhülse, im Längsschnitt.The only figure shows a stationary standpipe and a Extension tube with locking sleeve, in longitudinal section.

In einem ortsfesten Standrohr 5 mit einem rechteckigen Innenprofil ist ein Auszugsrohr 4 vertikal verschieblich eingeschoben. Das Auszugsrohr 4 ist auf mindestens einer Seite mit einer oder mehreren Ausnehmungen 7 fluchtend in Vertikalrichtung versehen. Auf dieses Auszugsrohr 4 ist die Arretierhülse 2 aufgeschoben, so daß deren gesamte Innenwandung im arretierten Zustand parallel zu der Außenwandung des Auszugsrohrs 4 verläuft. Im arretierten Zustand liegt die untere Stirnfläche der Arretierhülse 2 auf dem oberen Ende des ortsfesten Standrohrs 5 auf. Das verschiebliche Auszugsrohr 4 liegt dabei mit der oberen Seite einer Ausnehmung 7 auf einer horizontal ausgebildeten Fläche 3a des angeformten Keils oder Kuppe 3 der Arretierhülse 2 kraftschlüssig auf. Der keilförmige Ansatz 3 der Arretierhülse 2 ist am unteren Ende der Innenseite der Arretierhülse 2 gegenüber der Drehachse 1 angeformt, kann jedoch, hier nicht dargestellt, auch auf der Innenseite der Arretierhülse 2 bei der Drehachse 1 über der Drehachse 1 angeformt sein. Der keil- oder kuppenförmige Ansatz 3 verjüngt sich zu der unteren Stirnfläche der Arretierhülse 2 bis zum Innenrand des relativ ortsfesten Standrohrs 5. Dabei bilden die untere Stirnfläche der Arretierhülse 2 und die durch die Verjüngung des keil- oder kuppenförmigen Ansatzes 3 einen Winkel α, der größer ist als 90°. Die Arretierhülse 2 ist auf der oberen Seite durch einen Schrägschnitt begrenzt, der gegenüber der Längsachse des Auszugsrohrs so geführt ist, daß der oberste Punkt 6 im Längsschnitt so zum untersten Punkt 1 der gegenüberliegenden Seite liegt, daß ein Kippen der Arretierhülse 2 möglich ist. In a fixed standpipe 5 with a rectangular one Inner profile is an extension tube 4 vertically displaceable inserted. The extension tube 4 is on at least one Side with one or more recesses 7 aligned in Provide vertical direction. On this extension tube 4 is the Locking sleeve 2 pushed so that the entire Inner wall in the locked state parallel to the The outer wall of the extension tube 4 runs. In the locked State is the lower end face of the locking sleeve 2 on the upper end of the fixed standpipe 5. The sliding extension tube 4 lies with the upper Side of a recess 7 on a horizontally formed Surface 3a of the molded wedge or crest 3 of the Locking sleeve 2 on non-positively. The wedge-shaped approach 3 of the locking sleeve 2 is at the lower end of the inside the locking sleeve 2 is formed in relation to the axis of rotation 1, can, however, not shown here, also on the Inside of the locking sleeve 2 at the axis of rotation 1 above the Axis of rotation 1 be formed. The wedge-shaped or dome-shaped Approach 3 tapers to the lower face of the Locking sleeve 2 to the inner edge of the relatively stationary Standpipe 5. The bottom face of the Locking sleeve 2 and by the taper of the wedge or dome-shaped approach 3 an angle α, which is larger than 90 °. The locking sleeve 2 is through on the upper side a diagonal cut that is limited to the longitudinal axis the extension tube is guided so that the top point 6 in Longitudinal section to the lowest point 1 of the opposite side is that a tilting of the Locking sleeve 2 is possible.

Will man nun den Abstand des höhenverstellbaren Auszugsrohrs 4 zum relativ ortsfesten Standrohr 5 verändern, so ist das höhenverstellbare Auszugsrohr 4 nach oben zu ziehen. Beim Hochziehen des Auszugsrohrs 4 kommt der untere Teil der Ausnehmung 7 gleitend in Kontakt mit dem keil- oder kuppenförmigen Ansatz 3 der Arretierhülse 2. Durch die Keil- oder Kuppenform des Ansatzes 3 wird die Arretierhülse 2 um den Punkt 1 nach außen gedreht. Dabei bewirkt die Gewichtskraft der Arretierhülse 2, daß sich diese nicht mit dem Auszugsrohr 4 nach oben bewegt. Beim Hochziehen des Auszugsrohrs 4 gleitet also der keil- oder kuppenförmige Ansatz 3 der Arretierhülse 2 aus der Ausnehmung 7 des Auszugsrohrs 4. Wird das Auszugsrohr 4 weiter nach oben gezogen, kommt der keil- oder kuppenförmige Ansatz 3 der Arretierhülse 2 mit der nächstfolgenden Ausnehmung 7 des Auszugsrohrs 4 in Eingriff. Der keil- oder kuppenförmige Ansatz 3 rastet in die nächstgelegene Ausnehmung des höhenverstellbaren Auszugsrohrs 4 ein. Das Auszugsrohr 4 ist dann in der Höhe fixiert, da über die waagrechte Fläche des keil- oder kuppenförmigen Ansatzes 3a und der oberen Seite der Ausnehmung 7 des Auszugsrohrs 4 und der unteren Seite der Arretierhülse 2 sowie der oberen Seite des ortsfesten Standrohrs 5 Kraftschluß besteht.Now you want the distance of the height adjustable Extension tube 4 to the relatively stationary standpipe 5 change, the height-adjustable extension tube 4 is after pull up. When pulling out the extension tube 4 comes the lower part of the recess 7 slidably in contact with the wedge-shaped or dome-shaped extension 3 of the locking sleeve 2. The wedge or dome shape of the approach 3 Locking sleeve 2 rotated outward about point 1. Here causes the weight of the locking sleeve 2 that this does not move upwards with the extension tube 4. At the Pulling up the extension tube 4 slides the wedge or dome-shaped extension 3 of the locking sleeve 2 from the Recess 7 of the extension tube 4. If the extension tube 4 pulled further up, comes the wedge or dome-shaped approach 3 of the locking sleeve 2 with the next following recess 7 of the extension tube 4 in Intervention. The wedge-shaped or dome-shaped attachment 3 snaps in the closest recess of the height adjustable Extension tube 4 a. The extension tube 4 is then in height fixed, because over the horizontal surface of the wedge or dome-shaped approach 3a and the upper side of the Recess 7 of the extension tube 4 and the lower side of the Locking sleeve 2 and the upper side of the stationary Standpipe 5 non-positive connection.

Die Schwerkraft der Arretierhülse 2 und die Formgebung der oberen und unteren Stirnfläche zueinander ermöglichen also, daß sich die Verbindung Arretierhülse 2 und höhenverstellbares Auszugsrohr 4 beim Hochziehen lösen kann. Eine Einhandbedienung beim Hochziehen ist durch diese Merkmale der Arretierhülse 2 gewährleistet. Durch den keil- oder kuppenförmigen Ansatz 3 wird die Einhandbedienung erleichtert. The gravity of the locking sleeve 2 and the shape of the enable the upper and lower end faces to each other, that the connection locking sleeve 2 and Loosen the height-adjustable extension tube 4 when pulling up can. One-handed operation when pulling up is through this Features of the locking sleeve 2 guaranteed. Through the wedge or dome-shaped approach 3 becomes one-handed operation facilitated.

Zum Absenken des höhenverstellbaren Auszugsrohrs 4 muß zuerst das Auszugsrohr 4 durch Anheben leicht entlastet und dann die Arretierhülse 2 um den Punkt 1 nach oben gedreht werden, so daß der keil- oder kuppenförmige Ansatz 3 aus der Ausnehmung 7 des höhenverstellbaren Auszugsrohrs 4 gleiten kann. Bei Erreichen der gewünschten Arretierungshöhe muß die Arretierhülse 2 einfach losgelassen werden. Der keil- oder kuppenförmige Ansatz 3 rastet dann in die nächstgelegene Ausnehmung 7 des höhenverstellbaren Auszugsrohrs 4 ein.To lower the height-adjustable extension tube 4 must first the pull-out tube 4 is slightly relieved by lifting and then the locking sleeve 2 rotated upward about point 1 be so that the wedge-shaped or dome-shaped approach 3 the recess 7 of the height-adjustable extension tube 4 can slide. When the desired one is reached Locking height, the locking sleeve 2 must be simple be released. The wedge-shaped or dome-shaped approach 3 then snaps into the nearest recess 7 of the height-adjustable extension tube 4.

Durch den kraftschlüssigen Verbund des höhenverstellbaren Auszugsrohrs 4 und dem oberen Ende des relativ ortsfesten Standrohrs 5 über den keil- oder kuppenförmigen Ansatz 3 der Arretierhülse 2 ist eine ungewollte Betätigung der Höhenverstelleinrichtung bzw. der Arretierhülse 3 im belasteten Zustand praktisch unmöglich gemacht. Diese selbstsichernde Konstruktion gegen ungewolltes Lösen im belasteten Zustand des Auszugsrohrs 4 ist eine wichtige Voraussetzung, daß diese Höhenverstelleinrichtung im genannten Ladenbereich einsetzbar ist.Due to the frictional connection of the height adjustable Extension tube 4 and the upper end of the relatively stationary Standpipe 5 over the wedge-shaped or dome-shaped extension 3 the locking sleeve 2 is an unwanted actuation of the Height adjustment device or the locking sleeve 3 in stressed condition made practically impossible. This self-locking construction against unwanted loosening in loaded state of the extension tube 4 is an important one Prerequisite that this height adjustment in mentioned shop area can be used.

Die obere und untere Stirnfläche der Arretierhülse 2 sowie die obere Stirnfläche des ortsfesten Standrohrs 5 können verschiedenartigst ausgeführt sein. Die oberen und unteren Begrenzungen der Arretierhülse 2 müssen hierbei jedoch eine Drehung um die Achse 1 ermöglichen. Dies kann z.B. durch Schrägschnitte bezüglich der Längsachse des Auszugsrohrs 4, wie z.B. auch durch U-förmige Einschnitte auf zwei gegenüberliegenden Seiten, erreicht werden.The upper and lower end faces of the locking sleeve 2 as well the upper end face of the fixed standpipe 5 can be carried out in various ways. The top and bottom Limitations of the locking sleeve 2, however, must be one Allow rotation around axis 1. This can e.g. by Bevel cuts with respect to the longitudinal axis of the extension tube 4, such as. also through U-shaped incisions on two opposite sides.

Claims (7)

  1. Vertically-adjustable device, with
    (a) a standpipe,
    (b) an extending pipe (4),
    (b1) which is disposed to be movable relative to the standpipe (5) and projects above the upper end face of the standpipe (5),
    (b2) whose circular, oval or polygonic external profile is identical or similar to the internal profile of the standpipe (5), and
    b3) which is provided on at least one side with one or a plurality of apertures,
    characterised by
    (c) a locking sleeve (2) which totally or partly surrounds the extending pipe (4),
    (c1) which has a clear cross-section constant across the axis of symmetry corresponding to the external cross-section of the extending tube (4) so that its entire inner wall in the locked condition extends parallel to the outer wall of the extending tube (4),
    (c2) which, in the locked condition, is supported on the upper end of the standpipe (5) with the lower end face, and which, together with the lower end face facing the standpipe (5) has an uppermost point, by means of which an axis of rotation (1) is defined, lying vertically to the axis of symmetry of the locking sleeve (2),
    (c3) which is provided with a stop means (3), which is integrally formed on the lower inner side, lying opposite the axis of rotation (1), of the locking sleeve (2), or on the side of the axis of rotation (1) above the axis of rotation (1) on the inner side of the locking sleeve, and in the locked condition engages in one of the apertures (7) in the extending pipe (4), and
    (c4) whose upper and lower end faces result from the penetration curves of extending pipe (4) and locking sleeve (2), when the locking sleeve (2) is rotated about the axis of rotation (1) through such an angle that the stop means (3) can slide out of the aperture (7) and the locking sleeve (2) is displaced along the extending pipe.
  2. Vertically-adjustable device according to claim 1, characterised in that
    the stop means (3) is formed on the inner side of the locking sleeve (2) in such a way that when the extending pipe (4) is raised, the locking sleeve (2) rotates automatically due to the gravitational force of the locking sleeve (2) about the axis of rotation (1) and thus the stop means (3) slides out of the aperture (7) in the extending pipe (4).
  3. Vertically-adjustable device according to claim 1 or 2, characterised in that
    the stop means (3) is formed with a contact surface (3a), which serves for contact of the upper side of an aperture (7) in the extending pipe (4),
    the stop means (3) is in a wedge or cup-shape, and tapers downward as far as the inner edge of the standpipe (5),
    the angle formed by the lower end face of the locking sleeve (2) and the taper of the wedge or dome-shaped stop means (3) is greater than 90°.
  4. Vertically-adjustable device according to claim 1, characterised in that
    the upper end face of the standpipe (5) is identical or similar to the lower end face of the locking sleeve (3).
  5. Vertically-adjustable device according to claim 1, characterised in that
    the upper and lower end faces of the locking sleeve (2) are formed by diagonal cuts.
  6. Vertically-adjustable device according to claim 1, characterised in that
    the upper surface line which results from the upper end face on the extending pipe (4), has a lowermost point (6), which lies at an identical height with or to a certain extent lower than the uppermost point of the lower surface line which results from the lower end face on the extending pipe (4), or which is at an identical height, or by a certain extent lower than the axis of rotation (1).
  7. Vertically-adjustable device according to claim 1, characterised in that the locking sleeve (2) is made of plastic or casting.
EP94100981A 1993-02-11 1994-01-24 Height adjustable apparatus Expired - Lifetime EP0610707B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4304101A DE4304101C2 (en) 1993-02-11 1993-02-11 Height adjustable device with locking sleeve
DE4304101 1993-02-11

Publications (2)

Publication Number Publication Date
EP0610707A1 EP0610707A1 (en) 1994-08-17
EP0610707B1 true EP0610707B1 (en) 1998-08-05

Family

ID=6480231

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94100981A Expired - Lifetime EP0610707B1 (en) 1993-02-11 1994-01-24 Height adjustable apparatus

Country Status (3)

Country Link
EP (1) EP0610707B1 (en)
AT (1) ATE169194T1 (en)
DE (2) DE4304101C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6250838B1 (en) 1997-08-12 2001-06-26 L & P Property Management Company Garment rack locking device
DE10035382C1 (en) * 2000-07-20 2001-10-25 Umdasch Shop Concept Gmbh Amst Height-adjustment device, for clothes rail or presentation stand, has telescopic pull-out tube with axially-spaced recesses and locking unit on stand tube and engagement element to engage recess
DE102012024786B3 (en) * 2012-12-19 2014-04-10 IBS GmbH Manual actuating type locking system for height adjustable display stand, has snap-fit pin which is arranged in engaged position and is locked by sliding sleeve, so that unlocking of bracket is ensured according to pushing of sleeve
CN112386069B (en) * 2020-11-16 2022-07-29 吴庆文 Clothes exhibition room is with rotatory show clothes hanger of liftable formula

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB747385A (en) * 1954-02-15 1956-04-04 Russell Eugene Happy Collapsible clothes support
BE556995A (en) * 1956-04-26
DE8530228U1 (en) * 1984-11-14 1985-12-05 Fehlbaum & Co., Dornach Height-adjustable polygon column clothes rack
DE8716304U1 (en) * 1987-12-10 1988-02-11 Bierther, Albert, 53721 Siegburg Clamping element
DK163531C (en) * 1988-11-18 1992-08-31 Expedit As TELESCOPE SOIL CONSTRUCTION, EX. FOR USE IN SHOW STANDS

Also Published As

Publication number Publication date
EP0610707A1 (en) 1994-08-17
DE4304101C2 (en) 1995-06-22
DE4304101A1 (en) 1994-08-18
ATE169194T1 (en) 1998-08-15
DE59406580D1 (en) 1998-09-10

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